Pair it with an external renderer: Twinmotion (free tier for non-commercial use, direct-link workflow) or export to Blender (free forever, Cycles rendering). Most paid SketchUp renderers only offer trials.
Learning SketchUp for work? It appears mostly in interior and early-concept roles — browse live interior architecture jobs, or note that employers ask for Revit/BIM far more often: BIM & Revit openings · what these roles pay.
More guides: free architecture software · free floor plan software · salary calculator.
SketchUp Free, the web version, is genuinely free for personal use — modelling in the browser with cloud storage. Desktop SketchUp Pro is paid; there is no free desktop version for commercial work.
Yes — SketchUp for Schools is free for eligible primary/secondary students, and university students can get SketchUp Studio at a steep education discount; many schools provide licenses.
Blender (free, open source) for serious modelling, FreeCAD for parametric/BIM work, and Sweet Home 3D for quick interior layouts.